Polymer Modified Bitumen (PMB)

Polymer modified bitumen is the type of bitumen obtained by the modification of strength and the rheological properties of the penetration graded bitumen. Here for this 2 to 8% of polymer is added.

  1. Elastic response increase
  2. Improvement in cohesive property
  3. Improvement in Fracture strength
  4. Providing ductility

Some of the examples of rubber polymers used are styrene block copolymers, synthetic rubbers, natural and recycled rubbers. Plastics that are thermoplastic polymers are also used.